All of the wiring for the air bags, steering wheel switches and horn go through the clock spring, so, it's very likely that's the problem. A horn ring was used on older vehicles, when the only electric parts on the steering wheel was the horn pad and contacts. A spring loaded, metal pin pressed against a metal ring, which provided a constant electrical circuit while the steering wheel was turned. Since there was only one circuit, this worked out fine. Once they started adding more switches and components to the steering wheel, a simple horn ring wouldn't work, so, the clock spring (or "spiral cable") was created to handle the multiple circuits.